Undulating furnace hearth or basin



(No Model.) 3 Sheets-.Sheet I.

A. BARKER.

UNDULATING PURNAGB HBARTH ,0R BASIN.

No. 410,343. Patented sepa-3.1889.

WITNBSSES: INVENTOR:

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(No Model.) s sheets-sheet a.

A. BARKER. UNDULATING FURNAGB HBARTEQR BASIN.

No. 410,343. Patented Sept. 3, 1889.

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INY'ENTOR: 36W/02W @Z2/MEM] BY u ATTORNEYS.

N4 PETER Phmwmhogmphur. wasniggxm D. C.

UNITED i STATES PATENT OFFICE.-

ANTHONY BARKER, OF PITTSBURGH PENNSYLVANIA.

UNDULATING FURNACE HEARTH OR BASIN.

SPECIFICATION forming part of Letters Patent No. 410,343, datedVSeptamber 3, 1889.

Application filed December 19, 1888. Serial No. 294,076. (No model.)

Basin, of which the following is a full, clear,

and exact description.

The object of my invention is to provide for the agitation of molteniron, so that every separate particle of iron will be brought intocontact with the reagent-such as metallic oxide found in cinder, slag,or scale-employed for its purification; and to this end the inventionconsists, essentially, of a centrally-supported hearth or basin and ameans for undulating the basin, aswill be hereinafter more fullydescribed, and specifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views. j

Figure 1 is a central longitudinal sectional View of a reverberatoryfurnace, representing the same as it appears when provided with myimproved undulating hearth or basin. Fig. 2 is a sectional plan Viewtaken on line :n a: of Fig. 1. Fig. 3 is a cross-sectional View taken online y y of Fig. 2, the basin or hearth being` represented as it appearswhen in a horizontal position. Fig. 4. is a similar view, the basin orhearth being, however, represented in its position of greatestdepression. Fig. 5 is a plan View of the roller-carrying disk. Fig. 6 isan inverted plan view of the hearth or basin. Fig. 7 is an enlargeddetail view in central. crosssection. Fig. 8 is anenlarged plan view ofa portion of the hearth or basin. Fig. 9 is an enlarged detail View ofthe construction illustrated in Fig. 7, the basin or hearth, however,being represented in its inclined position; and Fig. 10 is acrosssectional view representing a modified construction.

In the drawings above referred to, 10 represents a hearth or basin thatis made from a cast-iron base 11 and castiron side walls 12, that arebolted to the base, the whole being lined with the refractory materiall.Aboss 14, formed with a concave recess,extends downward from the underside of the center of the base 11, and about this boss there is formed aconcentric cam-faced flange 15, the face of said flange being in aplanethat is ata slight angle to that of the base.

The hearth is supported by a vertical post or standard 16, which passesthrough a bedplate 17 to astep 18, the upper end of the shaft or postbeing convex to fit within the concave recess of the boss 14. A disk 19is loosely tted upon the post 16 and rests upon the plate 17, and thisdisk is formed with a bevel-gear 2O about the edge of its under side,which gear is engaged by a pinion 21, that is carried by a horizontalshaft 22, which may be driven in any m anner desi1'ed-as,for instance,bymeans of a belt passing over a pulley 23, that is carried by the shaft.The disk 19 carries four wheels or rollers 24, 25, 26, and 27, of whichthe rollers 24 and 26 are of the same size and are located at pointsdiametrically opposite the axis of the disk. The roller 25 is largerthan the rollers 24 and 26, while the roller 27 is smaller than saidrollers 24: and 26. The rollers 25 and 27 are arranged at right anglesto the rollers 24 and 26. About the hearth 10 there are secured a numberof iianges 28, that are formed with hook like projections 29, which areengaged by correspondingly hookshaped projections 30, that are formedlupon plates 31, said plates being lined with firebrick, while a loosefold 32 of asbestus cloth is attached, as represented. About the upperportion of the side walls or flange 12 there is fitted a collar or rim34,which lnayb'e removed when exceedingly worn. To the working-door 35of the hearth there is connected a working fore-plate 36, which restsagainst the ange 12, as shown in the drawings, the fore-plate-` movingfrom the position in which it is shown in Fig. 3 to the position shownin Fig. 4 as the hearth or basin is tilted; or instead of such afore-plate as the one shown a fore-plate 36 (see Fig. 10) might beemployed, this fore-plate being pivotally connected to the furnace-walljust inside of the working-door in a manner so that it will rise andfall as the hearth or basin is tilted. In Fig. 8 I have shown threestraight plates 37, of which the center plate is a breast-plate,whilethe others are jam-plates.

Such being the general construction of my improved undulating furnace,the operation is as follows.: A rotary motion being imparted to theshaft 22, the disk 19 will be revolved, and the rollers carried by saiddisk will travel around the cam-faced flange l5, the wheels or rollers24, 25, 2G, and 27 being so proportioned that when the roller or wheel25 is beneath that portion of the ange which extends to the least degreefrom the plate 11 the basin or hearth will be in a horizontal position;but when the wheel or roller is beneath the opposite side of thehearth-that is, beneath that portion of the flange which has thegreatest projection--the hearth or basin will be tilted, as illustrated.By following the motion necl essarily imparted toffthe basin it will beseen slots formed in the fire-bridge and flue-bridge,

as shown in Fig. l.

I-Iavin g thus described my invention, I claim as new and desire tosecure b y Letters Patentl. In an undulating furnace, the combination,with a basin or hearth, of a central post or standard 'upon which thehearth is free to turn, a revoluble disk, and wheels of unequal diametercarried thereby and arranged to bear against the under side of thehearth, substanmounted to bear against the outer edge of thehearth-ange, substantially as described.

4. The combination,with ahearth, of a een tral supporting post orstandard, a means for undulating the hearth, swinging aprons or Hangesbearing against the-outer face of the hearth-flange, and an asbestusfold arranged about the hearth, substantially as described.`

5. The combination, with an undulating hearth or basin, of a swingingfore-plate arranged in connection therewith, substantially as described.Y

6. The combination, with a non-revoluble tilting hearth orbasin, of aswinging fore-plate resting against one edge thereof, substantially asdescribed.

' ANTHONY BARKER.

Witnesses: JOHN I-I. CRATTY, HARRY HoovER.

